Accord communications has manufactured latest isdn pabx for business communication and corporate networks. The sae series is an outcome of the latest technology ranging from 16 to 5356 ports with universal slot architecture with distributed processing and identical cards for all models which provide a total telecom solution for organizations. The sae-3000 systems are developed on the isdn platform and support q-sig for networking of 2 or more systems to create multi-vendor network with complete feature transparency between the users in the network. The digital isdn pabx system provides isdn connectivity of both types bri for up to 128 kbps and pri up to 2 mbps data transmission and capability for video-conference. The system comes with full hot standby for both power supply and cpu for complete redundancy. The company supplies digital isdn pabx in a wide variety of key phones available with tiltable lcd display of 2 x 24 characters. The key phones have data port for printer/computer connectivity for personal cti applications and give a chip card facility which helps the consumer use their facilities from anywhere within the office. The digital isdn pabx key phones are available with ready to support all isdn features like aoc, msn, etc.